海女

Unknown, but the same as 海人 (ama, “male diver”). The kanji spelling is jukujikun (熟字訓).

Possibly from Proto-Japonic *amay compare Old Japanese: 雨 (“rain”), 天 (ame₂, ama, “sky”)

海女(あま) • (ama) 

1. a female diver, especially for shellfish and seaweed

海女 • (haenyeo) (hangeul 해녀)

1. hanja form^? of 해녀 (“a female diver; Haenyeo”)